I have an old Chromebook Acer R11. Almost useless as its no more updates from Google.
Anyhow i tested with the Seestar app and it works great except for that its not possible to rotate the app 90'. So even if the screen is big the app screen is not bigger than from my phone.
If the app could be rotated 90' i could actually use my old Chromebook for something usefully as the screen is big and it have good battery capacity.